Perkins, G. D. (1971). The principles of electrical science in SI units. English Universities press.
シカゴスタイル引用形Perkins, G D. The Principles of Electrical Science in SI Units. London: English Universities press, 1971.
MLA引用形式Perkins, G D. The Principles of Electrical Science in SI Units. English Universities press, 1971.
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